Introduction to Axial Fan

This study proposes a method for the approximate simulation of field gust in an atmospheric boundary layer wind tunnel driven by an axial fan.

To enhance the thermal performance and relieve the impact of crosswind on the super large-scale natural draft wet cooling towers (SLWCTs), based on our previous research, through the three-dimensional numerical simulation of the SLWCT equipped with an axial fan, the impact of the fan positions on the thermal performance was investigated at various crosswind velocities (1–9 m/s) when the fan power was fixed to 200 kW.

The designed model is based on input signals from special smoke sensors to control alternating current axial fans for building ventilation.

This work deals with the application of the open-source computational fluid dynamics (CFD) code MULTALL to the analysis of tube-axial fans.

A perforated plate in an electronic device is typically placed downstream of an axial fan (push cooling) in order to avoid electromagnetic interferences.

Existing studies indicate excessively high NOx and DPM concentrations at some sites and axial fans commonly used for coal and metal mines are widely used for auxiliary ventilation in the working area despite their low efficiency in large-opening mines.

The axial fan is an element of a blower used for ventilation in various industrial fields.

The desiccant materials aim to adsorb the water vapor that associated with the air, an axial fan is used to blow the ambient air over the desiccant.

Enhanced airflow by axial fans is widely applied for efficient convective heat transfer and thermal management.

Effectiveness upgrade activities are viewed as the necessary arrangement in decreasing energy usage and ultimately opposing the worldwide natural effects of the all-out world energy produced, ventilation system, particularly the axial fans, burn-through about 20%.

The noise emitted from an axial fan has become one of the primary concerns for many industrial applications.

, in an axial fan.

A condition obtained for the pressure of axial fans for octave bands and for the sound level in dBA, when dry cooling towers emit sound energy more than natural draft cooling tower.

Axial fans with a small hub-to-tip diameter ratio are used in many branches of industry.

They are usually operated in combination with other machines, such as axial fans, in order to remove or supply heat to a system.

Taking the project of long-large shield tunnel with low gas in Xingtian section of Chengdu Metro Line 18 as an example, A new construction ventilation method is established, which includes: the main tunnel ventilation with axial fans installed at the entrance of the tunnel and the local ventilation with jet fans installed in the shield and at the upper part of the bridge and the top of the 4# trailer for the rear supporting system; the connecting passage ventilation with a jet fan installed on the wall; the crossing ventilation with a jet fan installed in the middle of tunnel.

In this contribution we investigate MPA designs for the low and mid-to-high frequency range and apply finite element (FE) simulations to precisely design absorber configurations for applications in room acoustics and axial fans.

Unsteady aerodynamic phenomena appearing close to the stall boundary in axial fans and compressors have been the subject of extensive investigations.

The aim of the paper is to examine the influence of limited space and its shape on the working conditions of axial fans test stand.

The rotor of the proposed integrated machine is functioning as both a rotor of the motor as well as an axial fan.

Air cooling systems typically consist of an array of axial fans which push or pull the air through the system.

The rotor of the proposed integrated machine is functioning as both a rotor of the motor as well as an axial fan.

Based on Reynolds averaged Navier-Stokes (RANS) equation and Realizable k-e turbulence model, the influence of abnormal deflection of two adjacent moving blades in an axial fan was discussed numerically.

The performance of axial fan with d.

Axial fans play a pivotal role in the road tunnel ventilation system.

The system was made up from a circulation pump, coolant reservoir, axial fan, electric heaters, PLC controlled drivers and instruments for various mechanical measurements along with the tested radiators.

Based on the idea of blocking the infiltration passage of the heater-generated warm air, a special cover was designed for the axial fan of the evaporator; the cover was kept open during cooling cycles to supply cold air into cabinets normally, but was forced closed during EHD cycles so that defrost heat was prevented from infiltrating into the FC.

In this study, flow phenomena through the axial fan and the rotor dynamic performance analysis of a permanent magnet generator with three phases has been explored for a wide velocity range by using an Ansys-Fluent computational fluid dynamics package.

The system is mainly composed of an air filter, an axial fan, a solar-induced ventilation wall and a solenoid valve.

According to the aerodynamic characteristic curves of the vertical wind turbine and axial fan, their matching method is proposed on the power and the speed.

This present work proposes a first approach on the characterization of the airflow generated by an orchard sprayer equipped with an axial fan and an air reverse system in the outlet plane of the air, while circulated through two artificial rows of canopy representing vineyard trellis, using 3D-ultrasonic anemometers to measure the experimental data.

Due to the low production cost, circular arc blades are often applied to axial fans as outlet guide vane.

The test is done by using a wind tunnel equipped with an axial fan at its end.

This paper researches that wind energy is utilized to directly drive the axial fan with the vertical wind turbine, to realize the underground ventilation.

Axial fans represent a major source of noise in technical systems.

Results show that increasing the blades sweep angle causes to improve the flow behavior such as efficiency and pressure ratio in axial fan and reducing it have a completely contrary result.

For the super large-scale natural draft wet cooling towers (S-NDWCTs), the higher rain zone produces water dropping potential energy which can be used to drive an axial fan, meanwhile, the larger diameter deteriorate the whole ventilation performance.

In this paper, an axial fan was introduced for thermal performance improvement of super-large natural daft wet cooling towers (S-NDWCTs), and the model experiment was performed to study the thermal performance of S-NDWCTs installed with an axial fan under windless and crosswind conditions.

The type of fan-blade skew used in axial fans has a strong impact on the sound field, the flow field and their interrelations.

This paper experimentally investigated the heat transfer and flow characteristics of three new finned copper foam heat sinks subjected to the impingement cooling by rectangular slot jet and axial fan.

The present study is to improve the volume flow rate of an axial fan through optimizing the blade shape under the demand for a specified static pressure.

The modelling of rotating parts, such as axial fans, is one of the main challenges of current CFD simulations of industrial applications.

Taking an axial fan as the research object, the whole 3D numerical simulation was conducted by using Ansys-CFX.